Clear about what we know.

Allocation profiles use Ofcom’s S7 numbering dataset after it has been imported locally. Only allocated mobile blocks (071–075 and 077–079) are supported, with authoritative GB mobile validation applied separately. The profile shows the dataset date and links to the source. S7 identifies a block allocation holder, not necessarily the original holder, the current network of an individual number, or the caller. Our public-source pilot contains manually reviewed business contact listings. Each includes its source link and review date; a listing is not verified caller identity. A missing external source means we have not researched that number, not that no information exists. Fixture data remains available for isolated development tests and is labelled wherever used.